| Table 1: | Engine Specifications | 
The following approximate capacities are given in English and metric conversions. See Recommended Fluids and Lubricants for more information.
Application  | Capacities  | |
|---|---|---|
English  | Metric  | |
Air Conditioning Refrigerant R134a  | For the air conditioning system refrigerant charge amount, see the refrigerant caution label located under the hood. See your dealer for more information.  | |
Cooling System  | ||
  | 17.8 qt  | 16.9 L  | 
  | 18.3 qt  | 17.3 L  | 
  | 17.9 qt  | 16.9 L  | 
  | 17.4 qt  | 16.5 L  | 
Engine Oil with Filter  | 6.0 qt†  | 5.7 L†  | 
Fuel Tank  | ||
  | 26.0 gal  | 98.4 L  | 
  | 31.5 gal  | 119.2 L  | 
  | 39.0 gal  | 147.6 L  | 
Transmission Fluid  | ||
  | 5.0 qt  | 4.7 L  | 
  | 7.7 qt  | 7.3 L  | 
Transfer Case Fluid  | 2.0 qt  | 1.9 L  | 
Wheel Nut Torque  | 140 lb ft  | 190 N·m  | 
†Oil filter should be changed at every oil change. After refill, the level must be rechecked. Add enough engine coolant so that the fluid is within the proper operating range.  | ||
Engine  | VIN Code  | Transmission  | Spark Plug Gap  | 
|---|---|---|---|
4.8L V8  | C  | Automatic  | 0.040 in (1.01 mm)  | 
5.3L V8 Flexible Fuel with Active Fuel Management™ (Iron)  | 0  | Automatic  | 0.040 in (1.01 mm)  | 
5.3L V8 Flexible Fuel with Active Fuel Management™ (Aluminum Block)  | 3  | Automatic  | 0.040 in (1.01 mm)  | 
5.3L V8 with Active Fuel Management™  | J  | Automatic  | 0.040 in (1.01 mm)  | 
6.0L V8  | K  | Automatic  | 0.040 in (1.01 mm)  | 
6.0L V8 with Active Fuel Management™  | Y  | Automatic  | 0.040 in (1.01 mm)  | 
Application  | Capacities  | |
|---|---|---|
English  | Metric  | |
Cooling System  | 18.1 quarts  | 17.1 L  |